tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: event trigger - test trigger filter
   4 # flags: instance
   5
   6 do_reset() {
   7     reset_trigger
   8     echo > set_event
   9     clear_trace
  10 }
  11
  12 fail() { #msg
  13     do_reset
  14     echo $1
  15     exit $FAIL
  16 }
  17
  18 if [ ! -f set_event -o ! -d events/sched ]; then
  19     echo "event tracing is not supported"
  20     exit_unsupported
  21 fi
  22
  23 if [ ! -f events/sched/sched_process_fork/trigger ]; then
  24     echo "event trigger is not supported"
  25     exit_unsupported
  26 fi
  27
  28 reset_tracer
  29 do_reset
  30
  31 echo "Test trigger filter"
  32 echo 1 > tracing_on
  33 echo 'traceoff if child_pid == 0' > events/sched/sched_process_fork/trigger
  34 ( echo "forked")
  35 if [ `cat tracing_on` -ne 1 ]; then
  36     fail "traceoff trigger on sched_process_fork did not work"
  37 fi
  38
  39 reset_trigger
  40
  41 echo "Test semantic error for trigger filter"
  42 ! echo 'traceoff if a' > events/sched/sched_process_fork/trigger
  43 ! echo 'traceoff if common_pid=0' > events/sched/sched_process_fork/trigger
  44 ! echo 'traceoff if common_pid==b' > events/sched/sched_process_fork/trigger
  45 echo 'traceoff if common_pid == 0' > events/sched/sched_process_fork/trigger
  46 echo '!traceoff' > events/sched/sched_process_fork/trigger
  47 ! echo 'traceoff if common_pid == child_pid' > events/sched/sched_process_fork/trigger
  48 echo 'traceoff if common_pid <= 0' > events/sched/sched_process_fork/trigger
  49 echo '!traceoff' > events/sched/sched_process_fork/trigger
  50 echo 'traceoff if common_pid >= 0' > events/sched/sched_process_fork/trigger
  51 echo '!traceoff' > events/sched/sched_process_fork/trigger
  52 echo 'traceoff if parent_pid >= 0 && child_pid >= 0' > events/sched/sched_process_fork/trigger
  53 echo '!traceoff' > events/sched/sched_process_fork/trigger
  54 echo 'traceoff if parent_pid >= 0 || child_pid >= 0' > events/sched/sched_process_fork/trigger
  55 echo '!traceoff' > events/sched/sched_process_fork/trigger
  56
  57
  58
  59 do_reset
  60
  61 exit 0